EP0300154A1 - Clamping device for filter elements of stainless steel fiber packages resp. mats - Google Patents

Clamping device for filter elements of stainless steel fiber packages resp. mats Download PDF

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Publication number
EP0300154A1
EP0300154A1 EP88107571A EP88107571A EP0300154A1 EP 0300154 A1 EP0300154 A1 EP 0300154A1 EP 88107571 A EP88107571 A EP 88107571A EP 88107571 A EP88107571 A EP 88107571A EP 0300154 A1 EP0300154 A1 EP 0300154A1
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EP
European Patent Office
Prior art keywords
stainless steel
edges
frame
steel fiber
clamping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88107571A
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German (de)
French (fr)
Other versions
EP0300154B1 (en
Inventor
Hans-Georg Dillmann
Horst Pasler
Hans Martinsteg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Forschungszentrum Karlsruhe GmbH
Original Assignee
Kernforschungszentrum Karlsruhe GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Publication of EP0300154A1 publication Critical patent/EP0300154A1/en
Application granted granted Critical
Publication of EP0300154B1 publication Critical patent/EP0300154B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C9/00—Emergency protection arrangements structurally associated with the reactor, e.g. safety valves provided with pressure equalisation devices
    • G21C9/004—Pressure suppression
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/10—Brush filters ; Rotary brush filters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Definitions

  • the present invention relates to a clamping device for filter elements made of stainless steel fiber packages or mats, in particular as temperature-resistant filter stages in channels of pressure reduction systems of the safety containers of nuclear plants according to the further features in the preamble of patent claim 1.
  • the channels of the pressure reduction systems mentioned include Droplet separators and other filter stages are provided that can withstand high temperatures, have a high degree of separation, are simple in construction and can withstand the pressures.
  • Stainless steel fiber packages in the form of one or more stainless steel fiber mats connected in series are used for this purpose. What is important when using such stainless steel fiber mats is the problem of clamping from their edges.
  • the object of the present invention is to provide such a clamping in which leaks occurring along the fibers parallel to the direction of the fiber bundle cannot reach the outside of the channel.
  • the present invention proposes the features listed in the characterizing part of claim 1 from a) to d). Further advantageous refinements of the invention. the features of the subclaims show that the problem is solved.
  • the figure shows the clamping device in duplicate using the example of clamping two metal fiber packages 1 and 2 or two separation stages at the entrance of a pressure relief channel 3 of the safety container, not shown, of a nuclear facility.
  • the pressure relief channel 3 is flowed in in the direction 4 through the inlet opening 5, which is covered by a perforated plate 6.
  • a circumferential angle frame 8 is welded as a vertical collar, one side 9 of which faces the direction of flow 4 and serves as a contact surface for the metal fiber packages 1 and 2.
  • two metal fiber packages connected in series are shown, the clampings of which are identical in each case.
  • the corresponding components 8, 9, 12, 13, 15, 16, 17 and 14 are therefore duplicated. It is important in the case of the clamps or clamps that they are located entirely within the channel wall 7 and remain tight to the outside.
  • the channel flanges 10 and 11 by means of which channel sections are assembled, are completely separate or independent of the clamping point of the edges 12 of the metal fiber packages 1 and 2. This clamping is now carried out in a special way:
  • a movable circumferential tensioning frame 13 presses thereon, which can be tensioned against the rear side 9 by means of screws 14.
  • the actual sealing point or sealing edge is double 24, 25 and is formed by the two legs 15 and 16 of a further frame 17 made of U-profile, which is welded with its rear side onto the surface 18 of the clamping frame 13 pointing in the direction of flow 4.
  • the two legs 15 and 16 press the edges 12 of the packages 1 and 2 against the back 9 of the angle frame 8.
  • a discharge pipe 20 is guided through the wall 7, by means of which any liquid that may have separated between the two fiber packs can be discharged downwards.
  • first stage metal fiber package 2 second stage metal fiber package 3 pressure relief duct 4 flow direction 5 entry opening 6 perforated sheet 7 wall 8 angular frames 9 outside 10 channel flange 11 channel flange 12 edges 13 stenter 14 screws 15 legs 16 legs 17 frames 18 area 19 stop collar 20 discharge spigots 21 perforated sheets 22 grids 23 edges 24 sealing edge 25 sealing edge

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Water Supply & Treatment (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Filtering Materials (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Abstract

The clamping device for filter elements of stainless steel fibre packs or mats, especially as temperature-resistant filter stages in the ducts of pressure suppression systems of the containment vessels in nuclear plants, consists of clamping elements, between which the edges of the stainless steel fibre packs are clamped in. For this purpose, an inward-projecting allround collar (8,9) is fitted to the inside of the duct wall (7), and its side 9 facing a pressure load serves as a bearing surface for the stainless steel fibre pack or packs 1,2. In addition, an allround clamping frame 13 is screwed against the bearing surface 9 in front of the stainless steel fibre pack 1,2, which clamping frame is movable towards the bearing surface and to which a further allround U-profile frame 17 is welded on its side facing the stainless steel fibre pack 1,2, the arms 15,16 of the profile being pressed into the edge 12 of the fibre pack 1,2, generating the pressing and forming the sealing edges 24 and 25. The edges, located outside the sealing edges 24,25, of the fibre packs 1,2 are located within the duct wall 7 or within the sealing region of the flanges 10,11, by means of which components of the duct 7 are assembled. <IMAGE>

Description

Die vorliegende Erfindung betrifft eine Einsprannvorrichtung fur Filterelemente aus Edelstahlfaserpaketen- bzw. matten, insbesondere als temperaturfeste Filterstufen in Kanälen von Druckabbausystemen der Sicherheitsbehälter kerntechnischer Anlagen gemäß den weiteren Merkmalen im Oberbegriff des Pa­tentanspruches 1.The present invention relates to a clamping device for filter elements made of stainless steel fiber packages or mats, in particular as temperature-resistant filter stages in channels of pressure reduction systems of the safety containers of nuclear plants according to the further features in the preamble of patent claim 1.

Bei den genannten Kanälen der Druckabbausysteme sind u.a. Tropfenabscheider und weitere Filterstufen vorgesehen, die ho­hen Temperaturen widerstehen können, einen hohen Abscheidegrad besitzen, einfach aufgebaut sind und die Drücken widerstehen konnen. Zu diesem Zweck werden Edelstahlfaserpakete in Form von ein- oder mehreren hintereinandergeschalteten Edelstahlfa­sermatten verwendet. Wichtig ist bei der Verwendung solcher Edelstahlfasermatten, das Problem der Einspannung von ihren Rändern her.The channels of the pressure reduction systems mentioned include Droplet separators and other filter stages are provided that can withstand high temperatures, have a high degree of separation, are simple in construction and can withstand the pressures. Stainless steel fiber packages in the form of one or more stainless steel fiber mats connected in series are used for this purpose. What is important when using such stainless steel fiber mats is the problem of clamping from their edges.

Aufgabe der vorliegenden Erfindung ist es nun eine solche Ein­spannung anzugeben, bei welcher auch entlang der Fasern parallel zur Richtung des Faserpaketes auftretende Leckagen nicht an die Außenseite des Kanales gelangen können.The object of the present invention is to provide such a clamping in which leaks occurring along the fibers parallel to the direction of the fiber bundle cannot reach the outside of the channel.

Zur Lösung dieser Aufgabe schlägt nun die vorliegende Erfin­dung die Merkmale vor, die im Kennzeichen des Patentanspruches 1 von a) bis d) aufgeführt sind. Weitere, vorteilhafte Ausge­staltungen der Erfindung bezügl. der Lösung der Aufgabe sind den Merkmalen der Unteransprüche zu entnehmen.To achieve this object, the present invention proposes the features listed in the characterizing part of claim 1 from a) to d). Further advantageous refinements of the invention. the features of the subclaims show that the problem is solved.

Einzelheiten der vorliegenden Erfindung werden im folgenden und anhand der Figur näher erläutert:Details of the present invention are explained in more detail below and with reference to the figure:

Die Figur zeigt die Einspannvorrichtung in doppelter Aus­führung am Beispiel der Einspannung zweier Metallfaserpakete 1 und 2 bzw. von zwei Abscheidestufen am Eingang eines Druckent­lastungskanales 3 des nicht dargestellten Sicherheitsbehälters einer kerntechnischen Anlage.The figure shows the clamping device in duplicate using the example of clamping two metal fiber packages 1 and 2 or two separation stages at the entrance of a pressure relief channel 3 of the safety container, not shown, of a nuclear facility.

Der Druckentlastungskanal 3 wird in Richtung 4 durch die Ein­trittsöffnung 5 angeströmt, welche durch ein Lochblech 6 abge­deckt ist. Auf die Wandung 7 des Kanales 3 ist an der Innen­seite ein umlaufender Winkelrahmen 8 als senkrechter Bund auf­geschweißt, dessen eine Seite 9 der Strömungsrichtung 4 zuge­wendet ist und als Anlagefläche für die Metallfaserpakete 1 und 2 dient. Bei der in der Figur dargestellten Ausführungs­form sind zwei hintereinandergeschaltete Metallfaserpakete dargestellt, deren Einspannungen jeweils identisch sind. Die entsprechenden Bauelemente 8, 9, 12, 13, 15, 16, 17 und 14 sind demnach doppelt vorhanden. Wichtig ist bei der bzw. den Einspannungen nun, daß sie völlig innerhalb der Kanalwandung 7 gelegen sind und dabei nach außen dicht bleiben. Die Kanal­flansche 10 und 11, mittels welcher Kanalteilstücke zusammen­gesetzt werden, sind völlig getrennt bzw. unabhängig von der Einspannungsstelle der Ränder 12 der Metallfaserpakete 1 und 2. Diese Einspannung erfolgt nun auf spezielle Weise:The pressure relief channel 3 is flowed in in the direction 4 through the inlet opening 5, which is covered by a perforated plate 6. On the inside of the wall 7 of the channel 3, a circumferential angle frame 8 is welded as a vertical collar, one side 9 of which faces the direction of flow 4 and serves as a contact surface for the metal fiber packages 1 and 2. In the embodiment shown in the figure, two metal fiber packages connected in series are shown, the clampings of which are identical in each case. The corresponding components 8, 9, 12, 13, 15, 16, 17 and 14 are therefore duplicated. It is important in the case of the clamps or clamps that they are located entirely within the channel wall 7 and remain tight to the outside. The channel flanges 10 and 11, by means of which channel sections are assembled, are completely separate or independent of the clamping point of the edges 12 of the metal fiber packages 1 and 2. This clamping is now carried out in a special way:

Auf die Rückseite 9, an welcher druckseitig die Ränder 12 der Faserpakete 1 und 2 anliegen, drückt auf diese ein beweglicher umlaufender Spannrahmen 13, der mittels Schrauben 14 gegen die Rückseite 9 gespannt werden kann. Die eigentliche Dichtstelle bzw. Dichtkante ist dabei doppelt 24, 25 ausgeführt und wird durch die beiden Schenkel 15 und 16 eines weiteren Rahmens 17 aus U-Profil gebildet, der mit seiner Rückseite auf die in Strömungsrichtung 4 weisende Fläche 18 des Spannrahmens 13 ge­schweißt ist. Damit drücken bei Verspannung mittels der Schrauben 14 die beiden Schenkel 15 und 16 die Ränder 12 der Pakete 1 und 2 gegen die Rückseite 9 des Winkelrahmens 8. Da­ mit sind die Pakete 1 und 2 im Kanal 3 abgedichtet einge­spannt, wobei eine evtl. Undichtigkeit der Einspannung entlang der Fasern parallel zu den Faserpaketen durch die Dichtkanten­bzw. stellen 24 und 25 an den Schenkeln 15 und 16 ohne Be­deutung bleibt, da eine evtl. Leckage immer innerhalb des Ka­nales 3 bleibt. Fur eine parallele Anpressung der Schenkel 15 und 16 sorgt ein Anschlagbund 19, der den Spannrahmen 13 auf der den U-Rahmen 17 - bezogen auf die Schrauben 14 - gegen­überliegenden Seite angeschweißt ist und etwa dieselbe Länge wie die Schwenkel 15 und 16 aufweist. Er liegt damit auch ge­gen die Fläche 9 an, wodurch eine einwandfreie Verspannung be­wirkt wird.On the rear side 9, on which the edges 12 of the fiber packs 1 and 2 abut on the pressure side, a movable circumferential tensioning frame 13 presses thereon, which can be tensioned against the rear side 9 by means of screws 14. The actual sealing point or sealing edge is double 24, 25 and is formed by the two legs 15 and 16 of a further frame 17 made of U-profile, which is welded with its rear side onto the surface 18 of the clamping frame 13 pointing in the direction of flow 4. Thus, when braced by means of the screws 14, the two legs 15 and 16 press the edges 12 of the packages 1 and 2 against the back 9 of the angle frame 8. Da with the packets 1 and 2 are clamped sealed in channel 3, a possible leak in the clamping along the fibers parallel to the fiber packets through the sealing edges or. make 24 and 25 on the legs 15 and 16 remains irrelevant, as a possible leak always remains within the channel 3. For a parallel pressing of the legs 15 and 16, a stop collar 19 ensures that the tensioning frame 13 is welded on the side opposite the U-frame 17 - with respect to the screws 14 - and has approximately the same length as the legs 15 and 16. He is therefore also against the surface 9, which causes a perfect bracing.

Zwischen den beiden Faserpaketen ist ein Ableitungsstutzen 20 durch die Wandung 7 geführt, mittles welchem zwischen den bei­den Faserpaketen evtl. abgeschiedene Flussigkeit nach unten abgeführt werden kann.Between the two fiber packs, a discharge pipe 20 is guided through the wall 7, by means of which any liquid that may have separated between the two fiber packs can be discharged downwards.

In Strömungsrichtung 4 gesehen - hinter den Faserpaketen 1 und 2 sind in den Rahmen 8 zum Stützen derselben Lochbleche 21 etwa bündig mit der Rückseite 9 eingeschweißt. Auf der Rück­seite der Pakete - also der Strömungsrichtung 4 zugewendet-­werden die Faserpakete 1 und 2 durch Gitter 22 aus Edelstahl gehalten bzw. geschützt, welche der Oberflächenkontur der Pa­kete 1 und 2 folgen und deren Ränder 23 mit in die Einspannung zwischen den Schenkeln 15 und 16 eingeklemmt sind.Seen in the direction of flow 4 - behind the fiber packs 1 and 2 are welded into the frame 8 for supporting the same perforated plates 21 approximately flush with the back 9. On the back of the packets - i.e. facing the flow direction 4 - the fiber packs 1 and 2 are held or protected by grids 22 made of stainless steel, which follow the surface contour of the packets 1 and 2 and their edges 23 in the clamping between the legs 15 and 16 are trapped.

Es ist auch möglich, die Anströmrichtung 4 umzukehren, wodurch die Faserpakete 1, 2 über die Lochbleche 21 angeströmt werden.It is also possible to reverse the flow direction 4, as a result of which the fiber bundles 1, 2 are flowed through via the perforated plates 21.

Bezugszeichenliste:Reference symbol list:

1 Metallfaserpaket erste Stufe
2 Metallfaserpaket zweite Stufe
3 Druckentlastungskanal
4 Anströmrichtung
5 Eintrittsöffnung
6 Lochblech
7 Wandung
8 Winkelrahmen
9 Außenseite
10 Kanalflansch
11 Kanalflansch
12 Ränder
13 Spannrahmen
14 Schrauben
15 Schenkel
16 Schenkel
17 Rahmen
18 Fläche
19 Anschlagbund
20 Ableitstutzen
21 Lochbleche
22 Gitter
23 Ränder
24 Dichtkante
25 Dichtkante
1 first stage metal fiber package
2 second stage metal fiber package
3 pressure relief duct
4 flow direction
5 entry opening
6 perforated sheet
7 wall
8 angular frames
9 outside
10 channel flange
11 channel flange
12 edges
13 stenter
14 screws
15 legs
16 legs
17 frames
18 area
19 stop collar
20 discharge spigots
21 perforated sheets
22 grids
23 edges
24 sealing edge
25 sealing edge

Claims (3)

1. Einspannvorrichtung für Filterelemente aus Edelstahlfaser­paketen- bzw. matten, insbesondere als temperaturfeste Fil­terstufen in Kanälen von Druckabbausystemen der Sicher­heitsbehälter kerntechnischer Anlagen, wobei die Spannvor­richtung aus Spannelementen besteht, zwischen denen die Ränder der Edelstahlfaserpakete bzw. des Paketes einge­klemmt sind, gekennzeichnet durch die folgenden Merkmale: a) An die Innenseite der Kanalwandung (7) ist ein nach innen ragender, umlaufender und senkrechter Bund (8, 9) angebracht, dessen einer evtl. Druckaufgabe zugewendete Seite (9) als Anlagefläche für das oder die Edelstahlfa­serpakete (1, 2) dient, b) gegen die Anlagefläche (9) ist vor dem Edelstahlfaserpa­ket (1, 2) ein umlaufender und gegen sie beweglicher Spannrahmen (13) geschraubt, c) auf den beweglichen Spannrahmen (13) ist an seiner, dem Edelstahlfaserpaket (1, 2) zugewendeten Seite ein umlau­fender Rahmen (17) aus U-Profil aufgeschweißt, dessen Schenkel (15, 16) in die Ränder (12) des Faserpaketes (1,2) eingedrückt sind, die Pressung erzeugen und die Dichtkanten (24, 25) bilden, d) die außerhalb der Dichtkanten (24, 25) - von der Kanal­mitte aus gesehen - gelegenen Ränderteile des Faserpake­tes (1, 2), liegen innerhalb der Kanalwandung (7) bzw. innerhalb des Dichtungsbereiches der Flansche (10, 11) durch welche Teilstücke des Kanales (7) zusammengefügt sind. 1.Clamping device for filter elements made of stainless steel fiber packages or mats, in particular as temperature-resistant filter stages in channels of pressure reduction systems of the safety containers of nuclear plants, the clamping device consisting of clamping elements between which the edges of the stainless steel fiber packages or the package are clamped, characterized by the following features : a) On the inside of the channel wall (7) an inwardly projecting, circumferential and vertical collar (8, 9) is attached, the side (9) facing a possible printing task serves as a contact surface for the or the stainless steel fiber packages (1, 2) , b) a circumferential and movable clamping frame (13) is screwed against the contact surface (9) in front of the stainless steel fiber package (1, 2), c) a circumferential frame (17) made of a U-profile is welded onto the side of the movable stenter frame (13) facing the stainless steel fiber bundle (1, 2), its legs (15, 16) into the edges (12) of the fiber bundle ( 1,2) are pressed in, generate the pressure and form the sealing edges (24, 25), d) the outside of the sealing edges (24, 25) - seen from the center of the channel - located edge parts of the fiber package (1, 2), are located within the channel wall (7) or within the sealing area of the flanges (10, 11) through which sections of the channel (7) are assembled. 2. Vorrichtung nach Anspruch 1, gekennzeichnet durch die wei­teren Merkmale : e) Die Edelstahlfaserpakete (1, 2) liegen mit ihrer der Strömungsrichtung (4) abgewendeten Seite flach jeweils an einem Lochblech an, welches in den Rahmen (8) etwa bündig mit der Rahmenseite (9) eingeschweißt ist, f) auf der der Strömungsrichtung (4) zugewendeten Seite des Faserpaketes (1, 2) ist seine gewölbte Oberfläche durch ein Edelstahlgewebe bzw. Gitter (22) geschützt, welches der Kontur der des Faserpaketes (1, 2) folgt und mit un­ter die Schenkel (15, 16) eingespannt ist. 2. Device according to claim 1, characterized by the further features: e) The stainless steel fiber bundles (1, 2) lie flat with their side facing away from the direction of flow (4) against a perforated plate which is welded into the frame (8) approximately flush with the frame side (9), f) on the side of the fiber bundle (1, 2) facing the direction of flow (4), its curved surface is protected by a stainless steel mesh or grid (22) which follows the contour of the fiber bundle (1, 2) and under the legs (15, 16) is clamped. 3. Vorrichtung nach Anspruch 1 oder Anspruch 2, dadurch ge­kennzeichnet, daß die gewölbte Seite der Metallfaserpakete (1, 2) die Anströmseite und die flache Seite derselben die Abströmseite oder umgekehrt ist.3. Apparatus according to claim 1 or claim 2, characterized in that the curved side of the metal fiber packages (1, 2) is the upstream side and the flat side thereof is the downstream side or vice versa.
EP88107571A 1987-07-18 1988-05-11 Clamping device for filter elements of stainless steel fiber packages resp. mats Expired - Lifetime EP0300154B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3723888 1987-07-18
DE19873723888 DE3723888A1 (en) 1987-07-18 1987-07-18 CLAMPING DEVICE FOR FILTER ELEMENTS MADE OF STAINLESS STEEL FIBER PACKAGES OR MATS

Publications (2)

Publication Number Publication Date
EP0300154A1 true EP0300154A1 (en) 1989-01-25
EP0300154B1 EP0300154B1 (en) 1992-06-17

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ID=6331914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88107571A Expired - Lifetime EP0300154B1 (en) 1987-07-18 1988-05-11 Clamping device for filter elements of stainless steel fiber packages resp. mats

Country Status (4)

Country Link
US (1) US4925623A (en)
EP (1) EP0300154B1 (en)
JP (1) JP2633632B2 (en)
DE (1) DE3723888A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9405025U1 (en) * 1994-03-24 1994-05-19 Haver & Boecker Filter block consisting of several layered wire mesh layers
GB9623362D0 (en) * 1996-11-09 1997-01-08 Goodson Malcolm G Method and apparatus for water treatment
US8192533B2 (en) * 2009-06-16 2012-06-05 G.T.E. Industries, Inc. Support system for exhaust emission control elements

Citations (7)

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Publication number Priority date Publication date Assignee Title
FR1304232A (en) * 1961-10-11 1962-09-21 Lip sealing device
FR1432680A (en) * 1965-02-01 1966-03-25 Tissmetal Improvement in filter presses and filter cloths
FR1440025A (en) * 1965-04-13 1966-05-27 Choquenet Fond Atel Device for fixing filter cloths on the filter press plates
DE1536909A1 (en) * 1965-11-16 1970-01-22 Choquenet Fond Atel Device for attaching the filter cloths to the plates of filter presses
DE2112891A1 (en) * 1971-03-17 1972-09-28 Interatom Liquid sodium aerosol filters - for sodium cooled nuclear power stations
DE2517479A1 (en) * 1974-05-20 1975-12-04 Westinghouse Electric Corp DEVICE FOR THE REMOVAL OF POTENTIALLY DAMAGEOUS PRODUCTION RESIDUES OR THE LIKE, SUCH AS METAL SPARKS, DURING THE PRIOR TO OPERATION TEST FROM A NUCLEAR REACTOR
EP0184219A1 (en) * 1984-12-07 1986-06-11 Westinghouse Electric Corporation Debris trap for a nuclear fuel assembly

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2980204A (en) * 1959-08-04 1961-04-18 United Gas Improvement Co Apparatus for filtering gas
US3961920A (en) * 1974-01-24 1976-06-08 Humphrey Gilbert Gas adsorber cell test sampler
DE2545309C2 (en) * 1975-10-07 1984-09-20 Delbag-Luftfilter Gmbh, 1000 Berlin Process for inserting and replacing suspended matter filter elements for nuclear systems and installation frames for carrying out the process
DE3635342A1 (en) * 1986-10-17 1988-04-28 Kernforschungsz Karlsruhe PRESSURE RELEASE SYSTEM FOR THE SECURITY CONTAINER OF A CORE REACTOR

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1304232A (en) * 1961-10-11 1962-09-21 Lip sealing device
FR1432680A (en) * 1965-02-01 1966-03-25 Tissmetal Improvement in filter presses and filter cloths
FR1440025A (en) * 1965-04-13 1966-05-27 Choquenet Fond Atel Device for fixing filter cloths on the filter press plates
DE1536909A1 (en) * 1965-11-16 1970-01-22 Choquenet Fond Atel Device for attaching the filter cloths to the plates of filter presses
DE2112891A1 (en) * 1971-03-17 1972-09-28 Interatom Liquid sodium aerosol filters - for sodium cooled nuclear power stations
DE2517479A1 (en) * 1974-05-20 1975-12-04 Westinghouse Electric Corp DEVICE FOR THE REMOVAL OF POTENTIALLY DAMAGEOUS PRODUCTION RESIDUES OR THE LIKE, SUCH AS METAL SPARKS, DURING THE PRIOR TO OPERATION TEST FROM A NUCLEAR REACTOR
EP0184219A1 (en) * 1984-12-07 1986-06-11 Westinghouse Electric Corporation Debris trap for a nuclear fuel assembly

Also Published As

Publication number Publication date
EP0300154B1 (en) 1992-06-17
JPS6439596A (en) 1989-02-09
DE3723888A1 (en) 1989-01-26
DE3723888C2 (en) 1991-12-19
JP2633632B2 (en) 1997-07-23
US4925623A (en) 1990-05-15

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